Adding Or Removing A Memory Module - Compaq Evo D500 Hardware Reference Manual

Adding System Memory and Upgrading the Internal Hard Drive

Adding or Removing a Memory Module

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3–4
For proper system operation, the DIMMs must be industry-standard
168-pin, 100 MHz, unbuffered, PC100-compliant SDRAM DIMMs,
or 133 MHz, unbuffered, PC133-compliant SDRAM DIMMs. If two
DIMMs are installed, they must be the same speed. This computer
comes equipped with 133 MHz DIMMs.
The SDRAM DIMMs must support CAS Latency 2 or 3 (CL = 2 or
CL = 3). They must also contain the mandatory Joint Electronic
Device Engineering Council (JEDEC) Serial Presence Detect (SPD)
information. DIMMs constructed with x4 SDRAM are not supported;
the system will not start when equipped with unsupported DIMMs.
CAUTION: Your memory module sockets have gold-plated metal
contacts. When upgrading your memory, it is important to use memory
modules with gold-plated metal contacts to prevent corrosion and/or
oxidation resulting from having incompatible metals in contact with each
other.
CAUTION: Static electricity can damage the electronic components of
the personal computer. Before beginning these procedures, ensure that
you are discharged of static electricity by briefly touching a grounded
metal object. Refer to Appendix C, "Electrostatic Discharge" for more
information.
CAUTION: When handling a memory module, be careful not to touch
any of the contacts. Doing so may damage the module.
1. Exit all software applications, shut down the operating system
software, turn off the personal computer and any external devices,
then disconnect the power cord from the power outlet.
2. Remove the access panel. Refer to "Removing and Replacing the
Access Panel" on page 3-1.
Hardware Reference Guide